code: def get_githash():
      try:
          return subprocess.run(
              ["git", "rev-parse", "HEAD"],
              encoding="utf-8",
              capture_output=True,
          ).stdout.strip()
      except OSError:
          return ""
  
imports: import argparse
  import collections
  import hashlib
  import os
  import platform
  import re
  import shutil
  import stat
  import subprocess
  import sys
  import textwrap
  import urllib.request
  import logging
label_desc: Use image node_id 8 for calling a global function with example usage: get_githash() and returns: subprocess, str